package com.wanxi.operator;

public class MyOperator {
    public static void main(String[] args) {
        int a = 10;
        int b = 20;
        int c = a + b;
        System.out.println(c);
        System.out.println(24.0 / 2);
//        四舍五入   向下取整 向上取整
//        System.out.println(a % b);
    }
}
